Polishing machine



y v. Puc. POLISHING MACHINE.

APPLICATIDN FILED FEB. 6. v|920.

1,415,478. Patented 9,1922.

4 su: surft 2'.

V. PUC.

POLISHING MACHINE'.

APPLICATION FILED r`.6.192o.

4 SHEETS-SHEET 3;

1,41 5,478. Patented May 9, 1922.

V'. PUC.

POLISHING MACHINE.

APPLICATION man ria. s. 1920.

Patented May 9, 19221.

4 SHEETS-#SHEET 4.

vUNITE vrs J voJ'rcH PUC, or rRAGUE-VINoHRAnY, BOHEMIA.

POLISHING MACHINE.

Specification of Lettersv Patent.

ratenten May 9,1922.

Application ined February 6,1920.' seri'aiNo. 356,783.

To all whom t may concern Be it known that- I, VOJ'TGH PUC, a citizen of the Republic of CZecho-Slovakia, re siding at Prague-Vinohrady, in Bohemia, have invented certain new and useful Improvements in Polishing Machines, (for which I have filed applications in Austria Apr. 5, 1918, and in Germany Apr. 5, 1918,) of which the following is a specification.

This invention relates particularly to machines for polishing relatively short'lengths of wire or rods of small diameter, such as are used for making safety-pins, knitting' needles, crochet needles, etc.

It is important that such wires or rods" should be thoroughly cleaned or polished before they are given final shape or nickelplated. When the Wires or vrods are used to form pointed articles such points are made by suitable grinders or other tools or machines vbefore the wires or rods are polished and after the vpolishing operation the wires are bent or otherwise Jformed into the desired shape and are then nickel-plated, black-var nished, or otherwise treated.

My present invention does not involve any mechanism for cutting the wires or bending them into shape or for pointing them, but relates to a new form of machine for polishing the Wires in such manner as to remove all rust -and other such imperfectionstherefrom so that the wires may be properly platedvand shall be perfectly smooth and even. The wires are polished after they have been pointed, and while my machine is especially designed for polishing wires or rods from which safety-pins, knitting nee-4 dles, etc., are made, it may be employed for polishing wires, rods and the like, suitable for making other articles.

In carrying' out my invention I provide, a container for a large number of wires or rods which is revolved in such manner as to cause the wires to tumble over each other and rub the one on the'others to-thus produce an abrading action which serves to clean the wires.v Preferably ground emery or other abrading material is introduced in the container or into the mass of wires to assist the polishing operation. Means is provided for revolving thecontainer andin order that the wires may be held in 4close contact vwith each other and to assist in re l volving them, I provide a toothed roller Which bears on the top of the mass, ofWires and this roller is rotated inv a direction opposite to that in which the container moves. Preferably this roller is made adjustable across the `mass of wiresin order that it may be made to bear on their pointed ends and 'thus cause the Wires tovassume an angle l which will bring the pointed or tapered ends together or in Contact y with each n other 1n such manner as to cause them to rub against veach other and thus produce the ldesired abrading action. wires from .being 1n the container,

In order to prevent V'the unduly bent or depressed I provide means below :the

wiresfory supporting them while being re-k volved. ,y

`ther features of my invention will be hereinafter described.

In the accompanying drawings Figure l yshows Ya front elevation of a polishing machine embodying myy invention.

VFigure 2 shows an end elevation thereof,

looking at the left-hand end of the machine. `Figure 3 showsa sectionon the line3;3

'or 'Figure t, illustrating particularly the Vcontainer for the wires, the toothed pressure roller, which operates on the top of the ,wires and the pressure roller whichsupports the Wires fromV beneath. l y Figure l is a section on the line Figure l and illustrates clearly'how the wiresare supported .in thekcontainer and how they are operatedon bythe toothed roller arranged above them.; ;y i

Figure 5 is a detail plan View, showing the toothed roller whichbears on the top of the wires and also .the'frame which supports the roller and thev mechanism for turning the roller.

Figaire` 6 is a detail view in side elevation of the supporting or ing-below the wires. l

Figure 7 is a plan View thereof. y

Figure 8 is a detail view'in longitudinal section of the container and illustrates how the toothed pressure ro-ller may'be shifted to one side of the container to operate more eliiciently on the pointed ends ofthe Wires.

The supporting frame may be 'of any suitable construction. As shown, it lcomprises end ltrames A, A', connected bytie rods a. On the supporting frame Aare mounted two pressure roller operatparallel longitudinally arranged channel bars B, Bv', which serve to support the mechanism hereinafter described.

On the frame I mount standards C', C2, provided with bearings for three longitudinally arranged shafts D', D2, D3. The shaft D carries fast and loose pulleys E', E2, and the shaft D" has keyed to it a spurwheel d, which meshes with a similar wheel CZ', keyed to the shaft D2. The spur-wheel ci also meshes with a similar wheel d2, keyed to the shaft D3. The shafts D', D2 and D3 are revolved in the direction indicated by the arrows.

rlhe container for the wires to be polished comprises two flanged disks G, having hubs g, carrying set screws g, by means of which the disks may be secured to the shaft D2 and set any desired distance apart thereon. The anges g2 of the disks extend inwardly towards each other from the peripheries of the disks and these flanged disks are of the same diameter and serve to support the wires or rods X in the manner illustrated most clearly in Figure 3. It will be cb served that the disks are arranged a considerable distance from each other and support the wires at their ends only. there being a clear space between the disks so that the wires may be readily introduced into the container. If necessary, the set screws g may be loosened and the disks moved apart to receive the wires and then brought closer together. A large quantity of wires or rods may be supplied to the container and these wires or rods are arranged in the manner illustrated, i. e., they are parallel and mutually support each other. The container is not completely filled, but a very large number of wires may be accommodated. f

As the container is revolved, the wires tumble over each other and revolve about their own axes and the operation is such as to clean and polish the wires. This action may be increased by supplying emery powder or other abradingmaterial, which is passed into the wires while they are being revolved.

In order to assist in the polishing operation, I provide a toothed roller H. which is attached to a shaft 71 carried by a frame Il. supported 0n the shaft D3. The roller H is provided with a. hub, 7L', carrying av set screw h2, by means of which the roller is secured to the shaft and may be set at any desired point lengthwise thereon.

The frame L. which carries the toothed pressure roller H, comprises two arms 7 provided at their inner ends with bosses Z', through which the shaft D3 extends and at their opposite ends with a cross piece Z2.

The shaft D3 revolves freely in the bosses an'd the frame may be raised. or lowered or swung on the shaft to the desired extent.

Collars Z4 are held on the shaft D3 by set screws Z5. These colla-rs may be adjusted endwise on the shaft and set to hold the frame L against'endwise movement on the shaft while permitting it to swing freely thereon. v y

The shaft it, which is supported in the frame L, carries a spur-wheel M, the hub m of which is secured to the shaft h by a set screw m. rIhe spur-wheel M engages a similar' wheel N, secured to the shaft D3 and held in place by a set screw a', carried by the hub n. The arrangement is such that the toothed roller H is revolved in a direction contrary to that of the container G, as indicated` by the arrows.

The toothed roller H is a pressure roller and the desired amount of pressure is obtained by an adjustable weight O, carried by a rod o, projecting from the frame L. The teeth .e on the roller H are preferably of the shape clearly illustrated in Figure 4.

In order to assist in the operation I may secure rigidly to the shaft D2, between the iianged disks G, one or more small toothed sleeves Q which operate on the wires in the middle portion of the mass to stir or disturb them and to thus cause the wires to exert an abrading action on each other.

It will be observed by reference to Figure 8 that the pressure roller H may be shifted to one side of the container so as to bear on the pointed ends of the wires in such manner as to cause them to assume an angle Vwhich will bring the pointed or tapered ends together or in contact with each other in such manner as to cause them to rub against each other and thus produce the desired abrading action.

The pressure roller H bearing on the top of the wires may tend to bend them unduly and in order to counteract this tendency I provide a pressure roller S, which supports the wires between the disks. rllhis roller is carried by a horizontally arranged frame T, pivoted to the main frame at t and carrying a weight Il, which may be adjusted to cause the roller to bear on the wires with the desired degree of pressure. In order to hold 'the frame against vertical movement when desired, I provide a spring bolt V, which is supported on the machine frame and engages the frame T in the manner clearly shown. This bolt may serve to hold the roller S away from the wires if desired, but serves mainly to hold the roller against vertical movement when there are no wires in the container. y

I have shown by full lines in Figure 1 a single pair of disks constituting a container and devices cooperating therewith for polishing a mass of wires, but the saine driving mechanism may, is desired, be employed to actuate a plurality of such devices.

The machine herein illustrated and de scribed has been operated most einciently to thoroughly clean and polish large quantities -thereinto4 and bearing. onthearticles, and

means for rotating said roller. j n

2. A polishing machine comprising a container for the articles to be polished, means for lrotating the container, a toothed roller journalled outsidethe container and' operating above the ,articles therein, means for rotating said roller, anda roller operating in the container below the articles.v

3. A polishing machine comprising acontainer for the articles to be polished, means for rotating the container, means supported outside the ycontainer operating therein and bearing on the articles to hold them in contact with each other, and a toothed device arranged centrally in the container in line with its axis of rotation and operating on the articles.

4. A polishing machine comprising a container for the articles to be polished, means for rotating the container, a roller journalled outside the container extending thereinto and bearing on the articles. means for rotating said roller, and a 'plurality of toothed devices arranged centrally in the container and operating on the articles in the middle portion of the mass.

5. A polishing machine comprising a container for the articles to be polished, means for rotating the container, `a toothed roller journalled outside the container extending thereintoand bearing on the articles, means for rotating said roller, and a toothed device arranged centrally in the container and operating on the articles.

6. A polishing machine comprising a container for the articles t0 be polished, means for rotating the container, a toothed roller journalled outside the container extending thereinto and bearing on the articles, means for rotating said roller.` and means for raising and lowering the roller.

7 A polishing machine comprising a container for the articles to be polished. means for rotating the container, a toothed roller operating in the container and bearing on the articles, a frame in which the roller is supported, means for raising and lowering the frame. and means for rotating the roller.

8. A polishing machine comprising a container for the articles to be polished, means for rotating the container, a toothed roller operating in the container and bearing on the articles, means for rotating said roller, a roller operating in the container below the pivoted `'r'amein which` said roller ismoun'ty ed, an adjustable counterweight carried yby said frame, and devices 4for holding vthe frame', in vlocked position.

10. A polishing Vmachine comprising a container for the articlesto be polished, consisting of two opposed flanged disks con'-l nected for conjoint operation buthaving la vfree space between the inner edges of their flanges, means for` rotating said container, and aroller'o'peratingin theI container above the articles therein.

j 11. AA polishingl machine l comprising va container for the articles to be polished, consisting of two opposed langed disks spaced j apart and adapted to support 'the' article'sto be polished and which` are connected forl conjoint operation, means for rotating the container, a toothed roller `operating in the container above the articles therein, and means for rotating said roller.

12. A polishlng machine comprising a container for the articles to be polished, conl.

sisting of two opposed flanged disks con-v nected for conjoint operation with a space between them, means for rotating said container, a toothed roller operating in the container above the articles therein, means for rotating said rollers, and means for raising and lowering the roller.

13. A polishing machine comprising a container for the articles to be polished, means for rotating the container, and a device supported outside the container extending thereinto and bearing on the pointed or tapered ends of the articles to be polished.

14:. A polishing machine comprisin a container for the articles to be polised, means for rotating the container, and a toothed roller journalled outside the container extending thereinto and bearing on the tapered ends of the articles to be pol-l ished.

15. A polishing machine comprising ay container for the articles to be polished, means for rotating the container, a device operating `in the container and bearing on on the articles, and means for adjusting said toothed device lengthwise of its axis to cause it to bear on any desired part of the mass of articles being treated.

17. A polishing machine comprising a container for the articles to be polished, means for rotating the container, a toothed roller operating in the container and bearing on the articles to be polished, means for rotating said roller, and means for adjusting it lengthwise of its axis.

18. A polishing machine comprising a container for the articles to loe polished, consisting of two opposed tlangeddisks connected 'together for conjoint operation, means for rotating said container, a toothed roller operating in the container above the articles therein, means 'for adjusting the disks towards and from each other, a frame in which the toothed roller is supported, means ttor raising and lowering said frame, means Jr'or rotating the toothed roller, and means for adjusting the roller longitudinally of its axis.

19. A polishing machine comprising a container for the articles to be polished, mea-ns for rotating the container, a toothed roller operating in the container and bearing on the articles, means for rotating said roller, a frame in which the roller is supported and which is adapted to swing in a vertical plane, and an adjustable counterweight carried by said frame. j

20. par polishing machine comprising a container for the articles to be polished, consisting of two opposed flanged disks connected for conjoint operationiadjustable towards and from each other and having a clear space between theni,'means for rotating said container, a roller operating in the container above the disks and between them, means for rotating the roller, and means for adjusting the roller in opposite directions towards and from the disks.

1n testimony whereof, l have hereunto subscribed my name.

voJTcH PUc. j 

